Emirates Airline is pressing US airplane-maker Boeing to improve its 777 aircraft or develop a new long-range jet that can be used on its Dubai to Los Angeles route, the airline’s president told Zawya Dow Jones yesterday.

“We’ve been in dialogue with Boeing for almost four years about this, but recently we felt that the impetus from Boeing to improve the 777 extended range had slowed,” Tim Clark said.

“We continue to remind them that we want an improvement to the extended range... or a new airplane.”

Emirates, which will be the biggest user of Boeing’s 777 widebody jet, currently operates a Boeing 777-200 LR (long range) nonstop from Dubai to LA, but says that the aircraft is inefficient.